<template>
  <div class="swiper-container">
    <div class="swiper-wrapper">
      <div
        class="swiper-slide"
        v-for="(imgList,index) in skuImageList"
        :key="imgList.id"
      >
        <img
          :src="imgList.imgUrl"
          :class="{active:defaultIndex === index}"
          @click="changeDefaultIndex(index)"
        >
      </div>
    </div>
    <div class="swiper-button-next"></div>
    <div class="swiper-button-prev"></div>
  </div>
</template>

<script>
  import Swiper from "swiper";
  import "swiper/css/swiper.min.css"


  export default {
    name: "ImageList",
    props:['skuImageList'],
    data(){
      return{
        defaultIndex:1
      }
    },
    methods:{
      changeDefaultIndex(index){
        this.defaultIndex = index
        this.$bus.$emit('changeDefaultIndex',this.defaultIndex)
      }
    },
    watch:{
      skuImageList:{
        immediate:true,
        handler(){
          this.$nextTick(()=>{
            if (this.skuImageList.length){
              new Swiper(".swiper-container", {
                slidesPerView: 4,
                spaceBetween: 30,
                slidesPerGroup: 1,
                // loop: true,
                loopFillGroupWithBlank: true,
                pagination: {
                  el: ".swiper-pagination",
                  clickable: true,
                },
                navigation: {
                  nextEl: ".swiper-button-next",
                  prevEl: ".swiper-button-prev",
                },
              });
            }
          })
        }
      }
    }
  }
</script>

<style lang="less" scoped>
  .swiper-container {
    height: 56px;
    width: 412px;
    box-sizing: border-box;
    padding: 0 12px;

    .swiper-slide {
      width: 56px;
      height: 56px;

      img {
        width: 100%;
        height: 100%;
        border: 1px solid #ccc;
        padding: 2px;
        width: 50px;
        height: 50px;
        display: block;

        &.active {
          border: 2px solid #f60;
          padding: 1px;
        }

        &:hover {
          border: 2px solid #f60;
          padding: 1px;
        }
      }
    }

    .swiper-button-next {
      left: auto;
      right: 0;
    }

    .swiper-button-prev {
      left: 0;
      right: auto;
    }

    .swiper-button-next,
    .swiper-button-prev {
      box-sizing: border-box;
      width: 12px;
      height: 56px;
      background: rgb(235, 235, 235);
      border: 1px solid rgb(204, 204, 204);
      top: 0;
      margin-top: 0;
      &::after {
        font-size: 12px;
      }
    }
  }
</style>